干旱区生态环境知识资源中心(Arid): Wind-Sand Flux Electrization over Desertified Areas

Arid

DOI	10.1134/S1028334X22070078
	Wind-Sand Flux Electrization over Desertified Areas
	Gorchakov, G., I; Kopeikin, V. M.; Karpov, A., V; Gushchin, R. A.; Datsenko, O., I; Buntov, D., V
通讯作者	Gorchakov, GI
来源期刊	DOKLADY EARTH SCIENCES
ISSN	1028-334X
EISSN	1531-8354
出版年	2022
卷号	505 期号:1 页码:483-488
英文摘要	Using the measurement data in a wind-sand flux on the desertified areas of Astrakhan oblast and Kalmykia, it has been established that the time variability of saltating and dust aerosol particle concentrations, the electric characteristics of the wind-sand flux, including electric currents of saltation, the volume charge of dust aerosol particles, and the electric field intensity in the near-surface layer of the atmosphere within a range of similar to 30 s to 30 min are determined by the low-frequency variations in the horizontal component of the wind velocity. According to the data of measurements, over the desertified area, the electric charge surface density reaches +25 nC/m(2). The empirical probability distribution of a specific charge for sand grains under the condition of quasi-continuous saltation is obtained. A saltation initiation mechanism by electric discharges on the underlayer surface is proposed. An analytical model of particle liftoff to the near-surface layer of the atmosphere by electric discharges on the underlayer surface is presented. It is shown that, during the electric (corona) discharge, the saltating particle launch velocity can exceed 1 m/s.
英文关键词	desertification wind-sand flux wind-sand flux electrization electric field intensity surface charge density electric currents of saltation specific charge dust aerosol emission volume charge of dust aerosol corona discharge saltation initiation by electric discharges saltating particle launch velocity
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000840322900012
WOS关键词	SALTATION ; AEROSOL ; FIELD
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392257
推荐引用方式 GB/T 7714	Gorchakov, G., I,Kopeikin, V. M.,Karpov, A., V,et al. Wind-Sand Flux Electrization over Desertified Areas[J],2022,505(1):483-488.
APA	Gorchakov, G., I,Kopeikin, V. M.,Karpov, A., V,Gushchin, R. A.,Datsenko, O., I,&Buntov, D., V.(2022).Wind-Sand Flux Electrization over Desertified Areas.DOKLADY EARTH SCIENCES,505(1),483-488.
MLA	Gorchakov, G., I,et al."Wind-Sand Flux Electrization over Desertified Areas".DOKLADY EARTH SCIENCES 505.1(2022):483-488.